JPH0274543U

JPH0274543U -

Info

Publication number: JPH0274543U
Application number: JP15340488U
Authority: JP
Priority date: 1988-11-25
Filing date: 1988-11-25
Publication date: 1990-06-07

Description

[Brief explanation of drawings]

第１図および第２図はこの考案の第１の実施例
を示すもので、第１図はトラクシヨンコントロー
ル装置全体の概略的構成図、第２図は副スロツト
ル弁および駆動機構の斜視図、第３図はこの考案
の第２の実施例を示す弁復帰機構の縦断側面図、
第４図および第５図はこの考案の第３の実施例を
示すもので、第４図は弁復帰機構の横断平面図、
第５図は同側面図、第６図はこの考案の第４の実
施例を示す弁復帰機構の横断側面図、第７図は従
来のトラクシヨンコントロール装置全体の概略的
構成図、第８図は副スロツトル弁および駆動機構
の斜視図である。１……エンジン、２……吸気通路、８……主ス
ロツトル弁、９……副スロツトル弁、１０……ア
クセルペダル、１１……ステツパモータ（駆動機
構）、１７……リターンスプリング（付勢手段）
、３２……弁復帰機構。 1 and 2 show a first embodiment of this invention, in which FIG. 1 is a schematic diagram of the entire traction control device, FIG. 2 is a perspective view of the sub-throttle valve and the drive mechanism, FIG. 3 is a vertical sectional side view of a valve return mechanism showing a second embodiment of this invention;
4 and 5 show a third embodiment of this invention, and FIG. 4 is a cross-sectional plan view of the valve return mechanism;
Fig. 5 is a side view of the same, Fig. 6 is a cross-sectional side view of a valve return mechanism showing a fourth embodiment of this invention, Fig. 7 is a schematic configuration diagram of the entire conventional traction control device, and Fig. 8 FIG. 2 is a perspective view of the sub-throttle valve and the drive mechanism. DESCRIPTION OF SYMBOLS 1... Engine, 2... Intake passage, 8... Main throttle valve, 9... Sub-throttle valve, 10... Accelerator pedal, 11... Stepper motor (drive mechanism), 17... Return spring (biasing means)
, 32...Valve return mechanism.

Claims

[Claims for Utility Model Registration] (1) A main throttle valve whose opening degree is controlled according to the amount of depression of the accelerator pedal, and a sub-throttle valve whose opening degree is controlled independently of the accelerator pedal, in the intake passage of the engine. A traction control device that can control engine output torque independently of the accelerator pedal by arranging a valve and controlling the opening degree of the sub-throttle valve, a drive mechanism that drives the sub-throttle;
A traction control characterized by comprising a biasing means that biases the auxiliary throttle valve in the opening direction and sets the biasing range from a fully closed position to just before the auxiliary throttle valve fully opens. Device. (2) A main throttle valve whose opening degree is controlled according to the amount of depression of the accelerator pedal and a sub-throttle valve whose opening degree is controlled independently of the accelerator pedal are arranged in the intake passage of the engine. In a traction control device capable of controlling engine output torque independently of the accelerator pedal by controlling the opening degree of a throttle valve, the drive mechanism that drives the sub-throttle valve and the sub-throttle valve are in a fully closed position. The tractor is further equipped with a valve return mechanism that returns the sub-throttle valve from a fully closed position to a predetermined opening position when an abnormality occurs in the drive mechanism to ensure the amount of air necessary for driving. sion control device.